US3807056A - Device for the contact-free support of a web of material - Google Patents

Device for the contact-free support of a web of material Download PDF

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Publication number
US3807056A
US3807056A US00204203A US20420371A US3807056A US 3807056 A US3807056 A US 3807056A US 00204203 A US00204203 A US 00204203A US 20420371 A US20420371 A US 20420371A US 3807056 A US3807056 A US 3807056A
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United States
Prior art keywords
web
box
air
extending
slot
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00204203A
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English (en)
Inventor
D Norfolk
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Polytype AG
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Polytype AG
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Filing date
Publication date
Priority claimed from SE16475/70A external-priority patent/SE341870B/xx
Priority claimed from SE07059/71A external-priority patent/SE352121B/xx
Application filed by Polytype AG filed Critical Polytype AG
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Publication of US3807056A publication Critical patent/US3807056A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/06—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames

Definitions

  • a U-shaped box-like member For supporting a web of material in a contact-free manner and also for drying the material, a U-shaped box-like member is arranged so that its open side faces toward the surface of the web to be supported.
  • An air baffle plate is positioned in the open side of the boxlike member and has a curvilinear shape along each of its edges located closely adjacent to the opposite closed sides of the box-like member. The spacing between the opposite sides and the curvilinear surfaces of the air baffle provide openings through which air is directed so that it follows the curvilinear surface of the air baffle'and provides a cushion between the air baffle and the web.
  • the air baffle can be formed in various ways, for example, by a pair of spaced tubular members joined by a plate member, by an oval shaped member and by a plate member with curved edges joined by a flat or undulating section.
  • the present invention is directed to a device for contact-free support and drying of a web of material and, more particularly, it concerns the configuration of the device for directing air so that it provides the necessary support without any direct mechanical contact or influence on the web of material.
  • a suspension drier is disclosed in German Auslegeschrift 1,729,222 in which the nozzle boxes are staggered in the direction of the web and also have a convex curvature in the same direction and baffle plates are arranged on the transverse walls and form slotted nozzles for the moving web.
  • a vibration-free guidance of the web is not assured with such suspension driers. Therefore, it is the primary object of the present invention to eliminate the disadvantages experienced in the prior art and to provide a device for contact-free support of a web which is relatively free of vibrations.
  • a web of material is supported in a contact-free manner by means of box-like members which direct air between a baffle plate and the web for supplying an air cushion and also for using the air to dry the web.
  • the box-like member has a U-shaped configuration with its open side facing toward the web and with the air baffle positioned within the open side and spaced along its edges from the adjacent sides of the box-like member.
  • the edges of the air baffle adjacent the sides of the boxlike member have a curvilinear shape and are spaced from the adjacent side surfaces to provide narrow elongated slot-like openings through which air can be directed. Because of the curvilinear configuration of the baffle at the slot-like openings, air discharged from the boxlike member flows over the curved surfaces and is directed across the baffle toward the opposite opening.
  • the air baffle can be provided such as a pair of spaced tubular members interconnected by a plate member, an oval shaped member and a plate member having either a flat or undulating surface between the curvilinear surfaces defining one side of the slot-like openings from the box-like member.
  • the box-like members from which the air is directed are arranged across the opposite surfaces of the web with the air baffles arranged in staggered relationship.
  • the invention is intended primarily for use in the paper, film and foil industries where piece material or a web of material is coated on one or both sides or where several webs are combined and subsequently transported through a passageway, tunnel or similar structure for drying, polymerization, fusion, baking, material changes, and the like.
  • the device in accordance with the present invention can be adapted individually or in groups to meet the requirements of the individual operation being effected on the web, for instance, drying, cooling, heating and supporting.
  • the present invention affords a device which provides vibration-free guidance in the longitudinal or transverse direction of a stationary material web or of a web moving at any desired speed.
  • the web tension can be varied within a wide range, that is by the range of tension produced by the air flowing from the nozzle-like openings in the device, and such variation can be altered without impairing the supporting or carrying properties of the device.
  • the device can be used for webs of thin foils or of thick cardboard and in instances where the overall height of the device must be'limited, numerous tests have indicated that the device yields optimum results in accordance with the intended use.
  • FIG. 1 is a sectional view of one embodiment of the present invention taken along the line A-B in FIG. 3;
  • FIG. 2 is a schematic view of a plurality of devices such as shown in FIG. 1 arranged in staggered relationship on the opposite sides of a web of material;
  • FIG. 3 is a top view of the embodiment of the present invention shown in FIG. 1; 7
  • FIG. 4 is a longitudinal sectional view taken along the line C-D in FIG. 3;
  • FIG. 5 is a longitudinal sectional view taken along the line E-F in FIG. 3;
  • FIG. 6 is a side view of another embodiment of the present invention. 1
  • FIG. 7 is a schematic side view of a device embodying the arrangement shown in FIG. 6 with the device for supporting the web being located above and below its surface;
  • FIG. 8 is a view, similar to FIG. 6, of still another embodiment of the present invention.
  • FIG. 9 is a side view, similar to that in FIG. 7, of devices embodying the arrangements of FIG. 8 arranged opposite both surfaces of a web of material;
  • FIG.S 10,11 and 12 are views similar to FIGS. 6 and 8 showing still further embodiments of the present invention.
  • FIG. 13 is a side view of devices embodying the arrangement as shown in FIG. 12 for supporting the opposite surfaces of a web;
  • FIG. 14 is a view of yet another embodiment of the present invention.
  • FIG; 15 is a side view of a pair of oppositely disposed devices embodying the arrangement shown in FIG. 14.
  • FIGS. 1 to a device for supporting a web of material.
  • the device includes a U-shaped box-like member 4 open on its face or side directed toward the web 14.
  • Supported within the U-shaped member 4 are a pair of laterally spaced tubular members 1,2 arranged so that their outer surfaces are spaced closely from the adjacent inner surfaces of the legs 9 of the U-shaped member. Due to the relative arrangement of the tubular members 1 and 2 and the adjacent inner surfaces of the box-like member 4, a pair of chambers 3 extend along each of the legs 9 of the box-like member.
  • the tubular members 1,2 combine with a supporting plate 5 to provide an air baffle facing toward the web 14.
  • the supporting plate 5 has a flattened V-shaped configuration in a plane extending in parallel relationship with the legs of the box-like member, note FIG. 5.
  • the point or apex of the V-shaped plate is located intermediate the ends of the plate, approximately midway between the ends of the tubular members 1,2, and is located more remotely from the web 14 than the surfaces of the plate which extend from the point to the opposite ends of the box-like member.
  • the surfaces of the plate 5 converge toward the web as they extend outwardly toward the ends of the tubular members.
  • Each of the surfaces of the plate 5 extending from its point has a longitudinally extending slot 6 extending generally in parallel relationship with the axes of the tubular members. The sides of the slots diverge from one another as the slot extends toward the ends of the tubular members.
  • cover plates 7 form closures for the ends of the tubular members and for the chambers 3. Accordingly, narrow elongated slot-like openings 10 are provided between the inner surface of the free ends of the legs 9 and the juxtaposed surface of the tubular members 1,2.
  • inlet lines 11 and 12 extend through the wall of the box-like member into the tubular members 1 and 2 for supplying air therein.
  • Each of the tubular members has a slot-like opening 13 for communicating the interior of the tubular member with one chamber 3. Accordingly, air flows through the inlet lines 11 and 12 into the tubular member 1,2 and then flows from each tubular member through the slotlike openings 13 into the chambers 3 and then through the nozzle or slot-like openings 10 toward the web and along the outer periphery of the tubular members. As can be seen in FIG. 1, the air flows over the curvilinear surface on the exterior of the tubular members after its passage through the nozzles 10 and flows inwardly toward the other tubular member and is removed through the slots 6.
  • the outwardly widening slots 6 are provided in the support plate 5. The air passing through these slots is drawn into the circulation system from the chamber between the plate 5 and the wall of the box-like member 4 by means of an exhaust system (not shown).
  • FIGS. 1 to 5 Based on the arrangement illustrated in FIGS. 1 to 5 and using the effect of the air on the web without any direct mechanical influence or contact, it has been found that different arrangements are possible, depending on the intended use for the device.
  • the embodiment shown in FIGS. 1 to 5 is characterized in that the air bafile is arranged between at least two oppositely disposed walls of a box-like member and the curvilinear surfaces of the baffle and the side walls of the box-like member provide a pair of nozzles or slot-like openings for directing the air outwardly so that it follows the curvilinear surface of the air baffle located at the opening. Due to the arrangement of the curvilinear surfaces of the baffle, the air from each of the nozzles or openings flows toward the other and provides the desired air cushioning effect.
  • the shape or configuration of the air baffles is selected in accordance with the type of material forming the web and several typical embodiments are shown in the drawings in FIGS. 6 to 15.
  • FIG. 6 another embodiment of the device is illustrated in which the oval shaped baffle plate 4A is positioned within the open side of a U-shaped box-like member 3A with the baffle plate extending between the free ends of the side walls lA,2A so that the curvilinear surfaces 7A,8A of the plate project outwardly from the ends of the side walls toward the web 9A.
  • the curvilinear ends of the baffle plate 4A and the free ends of the adjacent side walls 1A,2A form elongated nozzles or slot-1ike openings 5A, 6A for directing air supplied into the boxJike member 3A.
  • Hot or cold air supplied into the box-like member 3A flows in the direction of the arrows at a high speed passing through the openings 5A, 6A and is directed toward the web of material 9A with a portion of the air following along the surface of the baffle plate 4A and providing the boundary layer effect or cushioning for the web.
  • the baffle plates 4A shown in both FIGS. 6 and 7, are represented as oval shaped members or bodies so that a curvilinear surface is provided at each of the nozzles or openings from the boxlike member.
  • FIG. 7 an arrangement is shown with a box-like member 10A located on the opposite sides of the surface of the web 9 and the openings in the boxlike members containing the nozzle plates are staggered or offset on the opposite sides of the web.
  • the web 9A passes between the two box-like members A, it is supported and spaced from the baffle plates by the flow of air conducted through the box-like members and outwardly through the openings extending along the curvilinear surfaces of the baffle plates.
  • FIGS. 8 and 9 another embodiment of the baffle plate is shown which consists of a pair of laterally spaced cylindrical bodies 11A joined together by a plate 12A fixed to and extending along the surfaces of the cylindrical bodies which are located more closely to the web 9A.
  • the openings from the boxlike members 10A on the opposite sides of the web 9A in FIG. 9 are offset relative to one another to effect the desired support arrangement.
  • the free ends of the side walls 1A,2A are directed inwardly toward the curvilinear surfaces 7A, 8A of the cylindrical bodies 11A forming a constricted opening and directing the air flowing from the nozzles 5A, 6A over the curvilinear surfaces 7A,8A.
  • a baffle plate is provided with an undulating or wave-shaped configuration having the curvilinear surfaces 7A and 8A located adjacent the nozzle or slot-like openings 5A,6A from the box-like member and with an additional wave-shaped section extending between the two curvilinear surfaces 7A,8A.
  • the curvilinear surfaces 7A,8A direct the air from the openings 5A,6A so that it flows toward the web and in a cushionlike effect between the baffle plate and the web.
  • the baffle plate has the curvilinear surfaces 7A, 8A located adjacent the slot-like openings 5A,6A from the box-like member, however, instead of the undulating form of section joining the curvilinear surfaces, a flat planar section is provided which is recessed inwardly toward the box member, that is away from the curvilinear surfaces 7A, 8A and the surface of the web.
  • FIG. 12 another embodiment of the baffle plate is shown similar to that set forth in FIG. 11, but the flat planar section which connects the curvilinear surfaces 7A, 8A extends in a plane containing the ends of the curvilinear surfaces located closer to the web.
  • the air flows outwardly from the box-like member through the restricted nozzle or slot-like openings 5A, 6A and then passes at least in part over the curvilinear surfaces 7A, 8A along the opposite edges of the baffle plate for providing the air cushion between the baffle plate and the web 9A.
  • FIG. 13 a pair of box-like members are positioned on the opposite sides of the web 9A and are provided with baffle plates formed in the same manner as the baffle plates in FIG. 12. As in the arrangements shown in FIGS. 7 and 9, the openings from the box-like members 10A in which the baffle plates are located are offset relative to one another on the opposite sides of the web.
  • FIGS. 14 and 15 Still another embodiment of the invention is shown in FIGS. 14 and 15 in which inverted L-shaped sections 15A are located on the interior surfaces of the sides 1A,2A adjacent their free ends.
  • the L-shaped sections 15A form elongated grooves or pockets into which the edges of the baffle plate extend and from which the curvilinear surfaces 7A,8A project toward the surface of the web.
  • a flat planar section extends between the ends of the curvilinear sections 7A, 8A. As indicated in FIGS.
  • the air entering the boxlike members flows outwardly through the grooves 13A, 14A formed between the ends of the sides IA, 2A and the L-shaped sections 15A, reversing direction about the ends of the curvilinear sections 7A, 8A and being directed outwardly over the curvilinear surfaces for passage between the flat surface of the baffle plate and the opposed surface of the web.
  • the boxlike members 10A are provided on the opposite sides of the webs with multiple openings containing baffle plates of the type shown in FIG. 14. As with the other box-like members 10A containing multiple openings for the baffle plates, the openings are offset relative to one another on the opposite sides of the web.
  • the main characteristic of the present invention incorporated into each of its embodiments is the curvilinear surfaces provided along the edges of the baffle plate adjacent the sides of the box-like member through which the air flows prior to passing between the baffle plate and the web.
  • the baffle plate is spaced from the sides of the box-like member so that nozzles or slot-like openings (in FIG. 1 reference numeral 10, in FIGS. 6 to 15 reference numerals 5A,6A) are provided so that the jets of air issuing through the openings follow the curvilinear surfaces of the air baffle and flow toward each other. After the air has been introduced between the baffle and the web, it must continue to flow because of the continuous supply of air from thebox-like members.
  • the air must reverse itself by 180 degrees and flow out in the opposite direction from which it came.
  • the air being supplied forces the air ahead of it in the axial direction of the device from the center toward the sides.
  • a chamber is formed for the length of the nozzles or slot-like openings having the dimension of the distance between the baffle plate and the web and also the width of the web and in the chamber the pressure is higher than atmospheric pressure so that it places the web of material under tension and carries it in a contact-free manner.
  • the amount of air can be reduced to about 5 percent of the usual amount used, because it has been found that this amount is sufficient for supporting the web so that it does not touch the structure from which the air flows. This arrangement leads to an economical consumption of air and prevents overdrying of the web during short work stoppages.
  • a device for supporting a web of material in a contact-free manner so that it is maintained in a spaced position from the device comprising a box-like member open at least on the side directed toward the web to be supported and closed along two opposite sides which extend along the open side and with the closed sides extending angularly from the open side away from the web, an air baffle positioned within and extending across the open side of said box member and closely spaced along two of its opposite edges from said two opposite sides of said box-like member and forming therebetween narrow elongated slot-like openings, each of said two opposite edges of said air baffle extending along said slot-like openings having a curvilinear form from a first location at which it forms one side of said slot-like opening to a second location spaced angularly from said first location and located in a plane disposed angularly to the plane of the adjacent said opposite side and extending in the general direction of the web to be supported, inlet means for supplying air internally of said box-like member with the air flowing outward
  • a device for supporting a web of material in a contact-free manner so that it is maintained in a spaced position from the device comprising a box-like member open-at least on the side directed toward the web to be supported and closed along two opposite sides which extend along the open side and with the closed sides extending angularly from the open side away from the web, an air baffle positioned within and extending across the open side of said box member and closely spaced along two of its opposite edges from said two opposite sides of said box-like member and forming therebetween narrow elongated slot-like openings, each of said two opposite edges of said air baffle extending along said slot-like openings having a curvilinear form from a first location at which it forms one side of said slot-like opening to a second location spaced angularly from said first location and located in a plane disposed angularly to the plane of the adjacent said opposite side and extending in the general direction of the web to be supported, inlet means for supplying air internally of said box-like member with the air flowing out
  • said plate member is a flat plate section fixed to and extending between said cylindrically-shaped members and being located in a plane which includes the surfaces of said cylindrically-shaped members spaced most closely from the web.
  • each of said surfaces of said plate member extending from its point having a slot therein extending in parallel relationship with the axes of said tubular members whereby the flow of air from said slot-like openings between said box-like member and the web enter said slot in said plate member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Advancing Webs (AREA)
US00204203A 1970-12-04 1971-12-02 Device for the contact-free support of a web of material Expired - Lifetime US3807056A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE16475/70A SE341870B (de) 1970-12-04 1970-12-04
SE07059/71A SE352121B (de) 1971-06-01 1971-06-01

Publications (1)

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US3807056A true US3807056A (en) 1974-04-30

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US00204203A Expired - Lifetime US3807056A (en) 1970-12-04 1971-12-02 Device for the contact-free support of a web of material

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US (1) US3807056A (de)
AT (1) AT316982B (de)
AU (1) AU462166B2 (de)
BE (1) BE776229A (de)
CA (1) CA969352A (de)
CH (1) CH536772A (de)
DE (1) DE2160131B2 (de)
FR (1) FR2114934A5 (de)
GB (1) GB1340000A (de)
IT (1) IT951649B (de)
NL (1) NL7116548A (de)

Cited By (13)

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US4043495A (en) * 1975-03-03 1977-08-23 Frank Sander Air cushioned turn bar
US4085522A (en) * 1972-10-30 1978-04-25 Hoechst Aktiengesellschaft Method and apparatus for freely suspending moving webs of material
US4384666A (en) * 1980-03-28 1983-05-24 Valmet Oy Nozzle apparatus for handling web material
EP0192429A2 (de) * 1985-02-15 1986-08-27 E.I. Du Pont De Nemours And Company Hydrostatische Bandunterstützung
WO1987003223A1 (en) * 1985-11-29 1987-06-04 Whipple Rodger E Gas nozzle assembly
US5293699A (en) * 1991-08-21 1994-03-15 Hoechst Aktiengesellschaft Process and apparatus for guiding a coated material strip
US5779184A (en) * 1995-03-17 1998-07-14 Voith Sulzer Papiermaschinen Gmbh Device and method for stabilizing a paper web at a time before the web is cut
US6155518A (en) * 1998-05-14 2000-12-05 Langbein & Engelbracht Gmbh Blow box for levitated guidance of a material web
US6364247B1 (en) 2000-01-31 2002-04-02 David T. Polkinghorne Pneumatic flotation device for continuous web processing and method of making the pneumatic flotation device
US20030226279A1 (en) * 2002-06-11 2003-12-11 Metso Paper Karlstad Ab Method and apparatus for making a tissue paper with improved tactile qualities while improving the reel-up process for a high bulk web
US20110131829A1 (en) * 2009-06-05 2011-06-09 Megtec Systems, Inc. Infrared Float Bar
CN103917714A (zh) * 2011-11-08 2014-07-09 韩国烟草人参公社 加工低引燃性香烟纸的设备以及包括该设备的制造低引燃性香烟纸的设备
CN113652818A (zh) * 2021-08-19 2021-11-16 苏州慧智新材料有限公司 一种lcp纤维布涂抹聚四氟乙烯的设备

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US4275107A (en) * 1980-05-19 1981-06-23 International Business Machines Corporation Polyester stabilization process and product
FI67586C (fi) * 1981-11-02 1987-12-29 Valmet Oy Foerfarande och anordning i samband med ytlimning av pappersbana och papper tillverkat med foerfarandet och/eller anordningen.
GB2126974B (en) * 1982-09-07 1985-09-11 Grace W R & Co Device for supporting a web on a bed of air
US4698914A (en) * 1986-05-29 1987-10-13 E. I. Du Pont De Nemours And Company Setting/drying process for flexible web coating
DE3914598C2 (de) * 1989-05-03 1994-05-19 Focke & Co Verfahren und Vorrichtung zum Abräumen von Gegenständen von einer Unterlage mit hohem Reibungswiderstand
DE19812776A1 (de) 1998-03-24 1999-09-30 Pagendarm Technologie Gmbh Vorrichtung zum Behandeln von Materialbahnen
DE10306509B4 (de) * 2003-02-14 2007-08-23 Otto Junker Gmbh Düsenfeld zur schwebenden Führung von Warenbahnen
DE102008005659B4 (de) * 2008-01-23 2010-12-09 Gerhard Bach Umlenkelement für flexibles Flachmaterial und Verfahren zu seinem Betreiben

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DE1129444B (de) * 1956-12-15 1962-05-17 Artos Maschb Dr Ing Meier Wind Vorrichtung zum Behandeln, insbesondere Trocknen, von innerhalb der Behandlungskammer locker oder frei schwebend gefuehrten Bahnen, insbesondere Gewebebahnen
US3041739A (en) * 1956-12-15 1962-07-03 Meier-Windhorst August Nozzle arrangement for drying and heat-treatment plants for web material
DE1145572B (de) * 1958-07-26 1963-03-21 Gustav Moehring Schlitzduese zum Aufblasen eines gasfoermigen Waermebehandlungsmittels auf bahnfoermiges Textilgut, insbesondere bei Trockenmaschinen fuer Gewebebahnen
US3367581A (en) * 1965-10-23 1968-02-06 Honeywell Inc Control apparatus utilizing a fluid amplifier
US3384282A (en) * 1964-09-03 1968-05-21 Vits G M B H Maschf Pneumatic conveyor for strip materials
US3448907A (en) * 1966-12-05 1969-06-10 Web Press Eng Inc Web positioner bar
US3452447A (en) * 1967-05-25 1969-07-01 Thomas A Gardner Web positioning means and method
US3549070A (en) * 1969-02-27 1970-12-22 Tec Systems Floatation of sheet materials
US3622058A (en) * 1966-11-23 1971-11-23 Vits Gmbh Maschf Contact-free holding of a web of sheet material guided in a floating manner

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Publication number Priority date Publication date Assignee Title
DE1129444B (de) * 1956-12-15 1962-05-17 Artos Maschb Dr Ing Meier Wind Vorrichtung zum Behandeln, insbesondere Trocknen, von innerhalb der Behandlungskammer locker oder frei schwebend gefuehrten Bahnen, insbesondere Gewebebahnen
US3041739A (en) * 1956-12-15 1962-07-03 Meier-Windhorst August Nozzle arrangement for drying and heat-treatment plants for web material
DE1145572B (de) * 1958-07-26 1963-03-21 Gustav Moehring Schlitzduese zum Aufblasen eines gasfoermigen Waermebehandlungsmittels auf bahnfoermiges Textilgut, insbesondere bei Trockenmaschinen fuer Gewebebahnen
US3384282A (en) * 1964-09-03 1968-05-21 Vits G M B H Maschf Pneumatic conveyor for strip materials
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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085522A (en) * 1972-10-30 1978-04-25 Hoechst Aktiengesellschaft Method and apparatus for freely suspending moving webs of material
US4043495A (en) * 1975-03-03 1977-08-23 Frank Sander Air cushioned turn bar
US4384666A (en) * 1980-03-28 1983-05-24 Valmet Oy Nozzle apparatus for handling web material
EP0192429A2 (de) * 1985-02-15 1986-08-27 E.I. Du Pont De Nemours And Company Hydrostatische Bandunterstützung
EP0192429B1 (de) * 1985-02-15 1991-05-29 E.I. Du Pont De Nemours And Company Hydrostatische Bandunterstützung
WO1987003223A1 (en) * 1985-11-29 1987-06-04 Whipple Rodger E Gas nozzle assembly
US4718178A (en) * 1985-11-29 1988-01-12 Whipple Rodger E Gas nozzle assembly
US5293699A (en) * 1991-08-21 1994-03-15 Hoechst Aktiengesellschaft Process and apparatus for guiding a coated material strip
US5779184A (en) * 1995-03-17 1998-07-14 Voith Sulzer Papiermaschinen Gmbh Device and method for stabilizing a paper web at a time before the web is cut
US6155518A (en) * 1998-05-14 2000-12-05 Langbein & Engelbracht Gmbh Blow box for levitated guidance of a material web
US6364247B1 (en) 2000-01-31 2002-04-02 David T. Polkinghorne Pneumatic flotation device for continuous web processing and method of making the pneumatic flotation device
WO2003104551A1 (en) * 2002-06-11 2003-12-18 Metso Paper Karlstad Ab A method and a dry-end section of paper-making machine for producing a tissue paper
US20030226279A1 (en) * 2002-06-11 2003-12-11 Metso Paper Karlstad Ab Method and apparatus for making a tissue paper with improved tactile qualities while improving the reel-up process for a high bulk web
US6743334B2 (en) 2002-06-11 2004-06-01 Metso Paper Karlstad Aktiebolag (Ab) Method and apparatus for making a tissue paper with improved tactile qualities while improving the reel-up process for a high bulk web
US20040181966A1 (en) * 2002-06-11 2004-09-23 Metso Paper Karlstad Aktiebolag (Ab) Method and apparatus for making a tissue paper with improved tactile qualities while improving the reel-up process for a high bulk web
US7112258B2 (en) 2002-06-11 2006-09-26 Metso Paper Karlstad Aktiebolag (Ab) Method and apparatus for making a tissue paper with improved tactile qualities while improving the reel-up process for a high bulk web
US10139159B2 (en) 2009-06-05 2018-11-27 Babcock & Wilcox Megtec, Llc Infrared float bar
US9228779B2 (en) 2009-06-05 2016-01-05 Megtec Systems, Inc. Infrared float bar
US9746235B2 (en) 2009-06-05 2017-08-29 Megtec Systems, Inc. Infrared float bar
US20110131829A1 (en) * 2009-06-05 2011-06-09 Megtec Systems, Inc. Infrared Float Bar
US10371443B2 (en) 2009-06-05 2019-08-06 Durr Megtec, Llc Infrared float bar
CN103917714A (zh) * 2011-11-08 2014-07-09 韩国烟草人参公社 加工低引燃性香烟纸的设备以及包括该设备的制造低引燃性香烟纸的设备
CN103917714B (zh) * 2011-11-08 2015-11-25 韩国烟草人参公社 加工低引燃性香烟纸的设备以及包括该设备的制造低引燃性香烟纸的设备
CN113652818A (zh) * 2021-08-19 2021-11-16 苏州慧智新材料有限公司 一种lcp纤维布涂抹聚四氟乙烯的设备
CN113652818B (zh) * 2021-08-19 2023-06-30 陈晓鸣 一种lcp纤维布涂抹聚四氟乙烯的设备

Also Published As

Publication number Publication date
CA969352A (en) 1975-06-17
GB1340000A (en) 1973-12-05
AU462166B2 (en) 1975-06-19
FR2114934A5 (de) 1972-06-30
NL7116548A (de) 1972-06-06
DE2160131A1 (de) 1972-06-08
CH536772A (de) 1973-05-15
AT316982B (de) 1974-08-12
BE776229A (fr) 1972-04-04
DE2160131B2 (de) 1979-03-08
IT951649B (it) 1973-07-10
AU3647171A (en) 1973-06-07

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